Miter-gage attachment for rules



(No Model.)

P. REISSMANN.

MITER GAGE ATTACHMENT T`0R.RULBS. No. 571,052. Patented Nov. 10, 1896.

TH: uonms Firms no. Psarou-mo., wnsnmcron n c UNITED STATES PATENTOFFICE.

FREDERICK REISSMANN, OF TVEST POINT, NEVV'YORK.

NllTER-GAGE ATTACHMENT FOR RULES.

SPECIFICATION forming part of Letters Patent No. 571,052, dated November10, 1896.

Application filed April 17, 1896. Serial No. 587,974. (No model.)

To all whom it may concern.-

Beit known that I, FREDERICK REISSMANN, a citizen of the United States,residing at West Point, in the county of Orange and State ofNewYork,have invented certain new and useful Improvements in Miters andRules; and I do hereby declare the following to be a full,

y clear, and exact description of the invention,

such as will enable others skilled in the art to which it appertains tomake and use the same.

My invention is an improved tool to be used in connection with acarpenters rule for the purpose of gaging a board to any desired width,of constructing a right angle on a board, and of inding the miter cutfor any polygon which may be used in the construetion of buildings.

The invention `consists of a metal plate having a flange thereon atright angles thereto, a disk rotatably mounted in said plate and held atany point within its range of movement'by friction, and a clamp for acarpenters rule secured to said disk and adapted to be rotatedtherewith. The rotating disk is graduated with marks indicating mitercuts for a right angle, for a heXagon, and for an octagon. These areadapted to be brought in line with the cut upon the stationary plate forthe purpose of adjusting the rule at any angle desired.

The invention is clearly illustrated in the accompanying drawings, inwhich- Figure 1 represents a plan View of my device with a carpentersrule shown applied thereto. Fig. 2 is a similar view of the same withthe rule removed. Fig. 3 is a lon gitudinal section through my device.

Like reference-numerals indicate like parts in the different views.

My tool or rule attachment is made up of a plate l, having a flange 2projecting from its under side at right angles therewith. Rotatablymounted in the plate 1 is a disk 3, which is provided with a series ofgraduations 4, indicatin g, respectively,a right an gle,a miter for ahexagon cut, and miter for an Octagon cut.

Secured to the upper surface of the disk 3 are a pair of parallel bars 55, which are connected by a cross-piece 6, in which is a thumbscrew 7the whole constituting a clamp for securing an ordinary rule S to thedisk 3. In using my device the rule 8 is placed within the clampprovided therefor and the plate l rested upon the board to be operatedupon, the same being held in position by the ilange 2 on said plate. Ifit is desired to gage the board to a certain width, the disk 3 is soturned as to bring its central graduation into engagement with a notchor cut 9 on the plate 1. The proper width of board may then be markedoff by the rule 8. In this position of the disk 3 a right-angle line maybe drawn. In case it is desired to obtain the miter for a hexagon thedisk is so turned that the line marked M I-I is brought into alinementWith the notch or cut 9, and likewise when the miter for an octa gon isdesired the line marked M O is brought into line with the notch or out9.

While I describe the disk 3 as being provided With graduationsindicating the miter for the right angle, theheXagon, and Octagon, I donot wish to limit myself to these graduations alone, as it is obviousthat the same may be provided with graduations indicating the miter forany polygon.

Having nowl described my invention, what I claim as new, and desire tosecure by Letters Patent, is-

1. The herein-described rule attachment -made up of a plate, having aflange at right angles thereto, a disk rotatably mounted in 'said plateand provided with graduations indicating the miters for differentpolygons and a suitable clamp for a rule secured to said disk,substantially as described.

2. The herein-described rule attachment made up of a plate having aliange at right angles thereto, a disk rotatably mounted in said plateand provided with a series of graduations indicating the miters fordiierent polygons, a pair of bars secured to said disk, a cross-barconnecting the same and a thumbscrew in said cross-bar whereby a rulemay be conveniently attached to and detached from said disk,substantially as and for the purpose described.

In testimony whereof I have signed this specification in the presence oftwo subscribing witnesses.

FREDERICK REISSMANN.

W'itnesses:

HENRY T. ALLEN,

ISAAC S. BOYLE.

